Analysis of magnetic pole loss and heat in a tubular hydro‐generator based on 3D electromagnetic field–thermal network modelling
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Published:2023-01-02
Issue:5
Volume:17
Page:730-742
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ISSN:1751-8660
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Container-title:IET Electric Power Applications
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language:en
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Short-container-title:IET Electric Power Appl
Author:
Hu Wen‐hao1,
Xie Jia‐qi1,
Zhou Zhi‐ting2,
Fan Zhen‐nan1ORCID,
Yang Yong3,
Dong Xiu‐cheng1,
Gu Shi‐fu1,
Li Jing‐can2
Affiliation:
1. Key Laboratory of Fluid and Power Machinery Ministry of Education Xihua University Chengdu China
2. State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing China
3. Dongfang Electric Machinery Co., Ltd Research and Test Center Deyang China
Abstract
AbstractIn order to more accurately and efficiently determine the loss and heating state of the magnetic pole area of a tubular hydro‐generator, this study establishes a comprehensive 3D electromagnetic field–thermal network analysis model of its pole area and implements calculations according to its rated symmetrical operating conditions. A 36 MW large tubular hydro‐generator is used as an example. Based on the measured results of the pole temperature and the use of the calculation hardware, the results are compared with the traditional electric circuit‐magnetic circuit‐thermal circuit method and 3D electromagnetic field‐temperature field finite‐element method. It is shown that the 3D electromagnetic field–thermal network model established in this study has several advantages, including high calculation accuracy, short calculation time, and low hardware consumption. These results have important value in improving the electromagnetic–temperature analysis and design of poles in large hydro‐generators.
Publisher
Institution of Engineering and Technology (IET)
Subject
Electrical and Electronic Engineering
Reference19 articles.
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2. Calculating temperature field in the stator of a large hydrogenerator by means of thermal network;Rijie F.;Large Electr. Mach.,1989